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  1. Article: Welcome to the One Electron World.

    Lachia, Mathilde / Kolleth-Krieger, Amandine

    Chimia

    2020  Volume 74, Issue 1-2, Page(s) 8

    Language English
    Publishing date 2020-04-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1516-7
    ISSN 0009-4293
    ISSN 0009-4293
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Welcome to the One Electron World

    Mathilde Lachia / Amandine Kolleth-Krieger

    CHIMIA, Vol 74, Iss 1-

    2020  Volume 2

    Keywords Chemistry ; QD1-999
    Language German
    Publishing date 2020-02-01T00:00:00Z
    Publisher Swiss Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Natural Products: Source of Innovation.

    Lachia, Mathilde / Sulzer, Sarah

    Chimia

    2017  Volume 71, Issue 12, Page(s) 799

    Language English
    Publishing date 2017-12-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1516-7
    ISSN 0009-4293
    ISSN 0009-4293
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: SCS-Syngenta Symposium 2015: Chirality, Upsides for Chemical Innovation.

    Lachia, Mathilde / Plant, Andrew

    Chimia

    2016  Volume 70, Issue 3, Page(s) 213–214

    Language English
    Publishing date 2016
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1516-7
    ISSN 0009-4293
    ISSN 0009-4293
    DOI 10.2533/chimia.2016.213
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Natural Products

    Mathilde Lachia / Sarah Sulzer

    CHIMIA, Vol 71, Iss

    Source of Innovation

    2017  Volume 12

    Keywords Chemistry ; QD1-999
    Language German
    Publishing date 2017-12-01T00:00:00Z
    Publisher Swiss Chemical Society
    Document type Article ; Online
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  6. Article ; Online: SCS-Syngenta Symposium 2015

    Mathilde Lachia / Andrew Plant

    CHIMIA, Vol 70, Iss

    Chirality, Upsides for Chemical Innovation

    2016  Volume 3

    Keywords Asymetric catalysis ; Chirality ; Chemistry ; QD1-999
    Language German
    Publishing date 2016-03-01T00:00:00Z
    Publisher Swiss Chemical Society
    Document type Article ; Online
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  7. Article: Efficiency and bioavailability of new synthetic strigolactone mimics with potential for sustainable agronomical applications

    Borghi, Lorenzo / Screpanti, Claudio / Lumbroso, Alexandre / Lachia, Mathilde / Gübeli, Christian / De Mesmaeker, Alain

    Plant and soil. 2021 Aug., v. 465, no. 1-2

    2021  

    Abstract: PURPOSE: Arbuscular mycorrhizal fungi (AMF) play important roles in agriculture because of their ability to improve plant resilience against abiotic and biotic stresses. AMF as a technology to promote a more sustainable agriculture holds great potential, ...

    Abstract PURPOSE: Arbuscular mycorrhizal fungi (AMF) play important roles in agriculture because of their ability to improve plant resilience against abiotic and biotic stresses. AMF as a technology to promote a more sustainable agriculture holds great potential, yet many factors affect the efficiency of this plant-microbe symbiosis leading to inconsistency in performance. The beneficial symbiosis between plants and AM fungi, also-known-as the mycorrhiza is promoted by strigolactones (SLs), carotenoid derivatives active as phytohormones and rhizosphere signals. Natural SLs are effective at extremely low concentrations, however their bioavailability in soil is scarce because their biosynthesis and exudation are plant-regulated, their degradation is fast and their mobility in soil is limited. METHODS: Through a broad synthetic chemistry approach, we explored how structurally diverse SL derivatives could improve hyphal branching of Gigaspora spp AMF under laboratory conditions and thus possibly boost mycorrhization into soil. RESULTS: We tested twenty-six different derivatives and we could highlight structural enhancements to promote hyphal branching of in vitro germinated AMF spores at equal, and in some cases higher levels compared to natural SLs. A subset of these derivatives was tested for bioavailability, but no clear correlation was found with their activity on hyphal branching. CONCLUSION: This study suggests that we could use a targeted, chemical-design approach to synthetize new SL derivatives to enable enhanced promotion of mycorrhization and potentially enhanced bioavailability compared to natural SLs. Due to the roles of AMF in crop production systems, these results highlight new innovative approaches to promote sustainable agriculture.
    Keywords Gigaspora ; bioavailability ; biosynthesis ; carotenoids ; chemistry ; crop production ; exudation ; hyphae ; rhizosphere ; soil ; strigolactones ; sustainable agriculture ; vesicular arbuscular mycorrhizae
    Language English
    Dates of publication 2021-08
    Size p. 109-123.
    Publishing place Springer International Publishing
    Document type Article
    ZDB-ID 208908-7
    ISSN 1573-5036 ; 0032-079X
    ISSN (online) 1573-5036
    ISSN 0032-079X
    DOI 10.1007/s11104-021-04943-8
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Design, Synthesis and Biological Evaluation of Strigolactone and Strigolactam Derivatives for Potential Crop Enhancement Applications in Modern Agriculture.

    De Mesmaeker, Alain / Screpanti, Claudio / Fonné-Pfister, Raymonde / Lachia, Mathilde / Lumbroso, Alexandre / Bouwmeester, Harro

    Chimia

    2019  Volume 73, Issue 7-8, Page(s) 549–560

    Abstract: Strigolactones have been known as signaling molecules in the rhizosphere of plants since more than 50 years. However, their roles as phytohormone have been only recognized since 2008. We describe here a very efficient synthetic access to representative ... ...

    Abstract Strigolactones have been known as signaling molecules in the rhizosphere of plants since more than 50 years. However, their roles as phytohormone have been only recognized since 2008. We describe here a very efficient synthetic access to representative canonical strigolactones displaying the A-B-C-D tetracyclic structure and to non-canonical strigolactones as carlactonoic acid and methyl carlactonoate. In addition, we report the design and the synthesis of strigolactams as promising derivatives of strigolactones for potential use in modern agriculture. Among the synthetic methods developed for this project, the intramolecular [2+2] cycloaddition of keteneiminium salts to C=C bond has been particularly useful to the synthesis of natural strigolactones and their potentially improved analogues.
    MeSH term(s) Agriculture ; Lactones ; Plant Growth Regulators ; Plant Roots ; Rhizosphere
    Chemical Substances Lactones ; Plant Growth Regulators
    Language English
    Publishing date 2019-07-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1516-7
    ISSN 0009-4293
    ISSN 0009-4293
    DOI 10.2533/chimia.2019.549
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Design, Synthesis and Biological Evaluation of Strigolactone and Strigolactam Derivatives for Potential Crop Enhancement Applications in Modern Agriculture

    Alain De Mesmaeker / Claudio Screpanti / Raymonde Fonné-Pfister / Mathilde Lachia / Alexandre Lumbroso / Harro Bouwmeester

    CHIMIA, Vol 73, Iss 7-

    2019  Volume 8

    Abstract: Strigolactones have been known as signaling molecules in the rhizosphere of plants since more than 50 years. However, their roles as phytohormone have been only recognized since 2008. We describe here a very efficient synthetic access to representative ... ...

    Abstract Strigolactones have been known as signaling molecules in the rhizosphere of plants since more than 50 years. However, their roles as phytohormone have been only recognized since 2008. We describe here a very efficient synthetic access to representative canonical strigolactones displaying the A-B-C-D tetracyclic structure and to non-canonical strigolactones as carlactonoic acid and methyl carlactonoate. In addition, we report the design and the synthesis of strigolactams as promising derivatives of strigolactones for potential use in modern agriculture. Among the synthetic methods developed for this project, the intramolecular [2+2] cycloaddition of keteneiminium salts to C=C bond has been particularly useful to the synthesis of natural strigolactones and their potentially improved analogues.
    Keywords Crop enhancement ; Keteneiminium salts ; Seed germination ; Strigolactones ; Total synthesis ; Chemistry ; QD1-999
    Subject code 540
    Language German
    Publishing date 2019-08-01T00:00:00Z
    Publisher Swiss Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Synthesis of strigolactones analogues by intramolecular [2+2] cycloaddition of ketene-iminium salts to olefins and their activity on Orobanche cumana seeds.

    Lachia, Mathilde / Wolf, Hanno Christian / De Mesmaeker, Alain

    Bioorganic & medicinal chemistry letters

    2014  Volume 24, Issue 9, Page(s) 2123–2128

    Abstract: Strigolactones have been the latest identified phytohormones. Among the strigolactones analogues described recently, GR-24 remains the most studied derivative which is used as standard in this field. In order to improve several properties of GR-24 for ... ...

    Abstract Strigolactones have been the latest identified phytohormones. Among the strigolactones analogues described recently, GR-24 remains the most studied derivative which is used as standard in this field. In order to improve several properties of GR-24 for potential agronomical applications, we investigated the effect of substituents on the B and C-rings on the activity for seed germination induction. We report here the synthesis of 9 GR-24 analogues via a [2+2] intramolecular cycloaddition of ketene-iminium salts and a summary of their activity for the germination of Orobanche cumana (broomrape) seeds.
    MeSH term(s) Alkenes/chemistry ; Cycloaddition Reaction ; Ethylenes/chemistry ; Germination/drug effects ; Imines/chemistry ; Ketones/chemistry ; Lactones/chemical synthesis ; Lactones/chemistry ; Lactones/metabolism ; Orobanche/drug effects ; Orobanche/growth & development ; Salts/chemistry ; Seeds/drug effects ; Seeds/growth & development
    Chemical Substances Alkenes ; Ethylenes ; Imines ; Ketones ; Lactones ; Salts ; ketene (LEP3SM032A)
    Language English
    Publishing date 2014-05-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 1063195-1
    ISSN 1464-3405 ; 0960-894X
    ISSN (online) 1464-3405
    ISSN 0960-894X
    DOI 10.1016/j.bmcl.2014.03.044
    Database MEDical Literature Analysis and Retrieval System OnLINE

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